Responding to chemical gradients: bacterial chemotaxis.

Responding to chemical gradients: bacterial chemotaxis.
复制标题

DOI:
10.1016/j.ceb.2011.11.008
复制
发表时间:
2012-04
影响因子:
7.5
通讯作者:
Wingreen, Ned S.
Wingreen, Ned S.
中科院分区:
生物学2区
文献类型:
--
作者:
Sourjik, Victor;Wingreen, Ned S.

文献摘要

参考文献

被引文献

相似文献

趋化性使细菌能够跟随营养物和其他环境刺激的梯度。大肠杆菌通过一种奔跑和翻滚的策略来执行趋化性,在这种策略中,敏感的时间比较导致有偏见的随机行走,在首选的梯度方向上运行的时间更长。多年来,大肠杆菌的趋化性网络已经发展成为信号转导和行为研究最彻底的模型系统之一,对细胞网络的信号放大、信号整合和鲁棒性等特性产生了普遍的见解。尽管相对简单,大肠杆菌趋化网络的运作在许多层面上都是高度精炼和进化优化的。例如,最近的研究表明,该网络根据细胞外环境调整其信号传导特性,显然是为了在特定条件下优化趋化性。该网络甚至可以利用潜在有害的蛋白质水平和反应速率的随机波动来最大化群体的趋化性能。
Chemotaxis allows bacteria to follow gradients of nutrients and other environmental stimuli. The bacterium Escherichia coli performs chemotaxis via a run-and-tumble strategy in which sensitive temporal comparisons lead to a biased random walk, with longer runs in the preferred gradient direction. The chemotaxis network of E. coli has developed over the years into one of the most thoroughly studied model systems for signal transduction and behaviour, yielding general insights into such properties of cellular networks as signal amplification, signal integration, and robustness. Despite its relative simplicity, the operation of the E. coli chemotaxis network is highly refined and evolutionarily optimized at many levels. For example, recent studies revealed that the network adjusts its signaling properties dependent on the extracellular environment, apparently to optimize chemotaxis under particular conditions. The network can even utilize potentially detrimental stochastic fluctuations in protein levels and reaction rates to maximize the chemotactic performance of the population.
DOI: 10.1038/43199
发表时间: 1997-06-26
期刊: NATURE
影响因子: 64.8
作者:
Barkai, N;Leibler, S
通讯作者: Leibler, S
DOI: 10.1371/journal.pcbi.1000784
发表时间: 2010-05-01
影响因子: 4.3
作者:
Clausznitzer, Diana;Oleksiuk, Olga;Endres, Robert G.
通讯作者: Endres, Robert G.
DOI: 10.1016/j.mib.2009.12.014
发表时间: 2010-04
影响因子: 5.4
作者:
Hazelbauer, Gerald L.;Lai, Wing-Cheung
通讯作者: Lai, Wing-Cheung
DOI: 10.1038/emboj.2011.77
发表时间: 2011-05-04
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
Khursigara, Cezar M.;Lan, Ganhui;Subramaniam, Sriram
通讯作者: Subramaniam, Sriram
DOI: 10.1073/pnas.092071899
发表时间: 2002-05-14
影响因子: 11.1
作者:
Ames, P;Studdert, CA;Parkinson, JS
通讯作者: Parkinson, JS